More Harley Sportster Information:

The Sportster X. These descend from the K series, 1952-56 XL. The Series started in 1957. They are "unit construction" (engine & transmission share a common case) L - High compression (7.5:1 in 1957) H - Starting in 1958 came the XLH, meaning Higher-power or High-compression (9:1) or Hot . Another engine in 1958 was the XLCH. The C was intended to mean "Competition". Harley created the CR- Cafe racer style with bikini fairing. Lastly, Harley Davison made the LT- Touring, with bigger tank, thicker seat, and hard bags.

A great resouce for details about years,components and pictures: http://www.sportster.org/history/
Kudos Erik and good luck with the book.

More Harley Dyna Information:

This bike was built as the chopper for all customers. Easily customizable and tons of after market parts and help.

Aninteresting article on the Dyna Wide Glide: One of my first big bikes.
http://www.chuckhawks.com/wide_glide.htm

FXR Series
- FXR Rubber Mount Super Glide
- FXRDG - Disc Glide
- FXRP - Police or pursuit
- FXRS - FXR Sport
- FXRS-CON - Convertible
- FXRS- Sport - Low Rider Sport Edition
- FXRT - FXR Touring
- FXS - Low rider/ Shovelhead
- FXSB - Low Rider Belt

More Harley Softail Information:

These two bikes bring some great excitement wherever they are. I've always been a big fan of them.

Another great article:
http://www.hdfxr.dk/Public/FXR/FXRHistory.aspx

Touring Series:
Touring FL - FLH - 4-Speed Dresser
- FLHS - 4-Speed Electra Glide
- FLT with windshield and less goodies S = Sport
- FLHR - Road King
- FLHRCI - Road King Classic
- FLHS- Electra Glide Sport
- FLHT - Electra Glide Standard

More Harley Touring Information:

This comprising of all of Harley Davidsons bigger bikes, made for touring. People who love to ride. This will be my next bike.

Lastly, Wikipedia has had some great people adding to it's collection of informaion:
http://en.wikipedia.org/wiki/Harley-Davidson

VRSC Series:
- VRSC: (V-TWIN Racing Street Custom)
- VRSCA: 1st model of the V-ROD family.

More Harley VRSC Information:

A new interesting bike, definately one breaking the mold. I'll keep gathering more information.

Here is information on all the letters that make up the Harley models
The first letter of the model designator: E, J, K ('50s small twin), F, U, V (Big Twin), D, G, R, W (Small Twin), X (Sportster), or V (VRSC)

They also reveal the engine series:
G - Servicar three wheeler, 1932 to 1972
E - Overhead valve 61 cubic inch "big twin" (Engine/trans separated)
F - Overhead valve 74,80 or 88 cubic inch "big twin"
FL - 80 to 88 cubic inches and a fat front tire.
K - Side valve 45 and 55 cubic inch sports bike that replaced the WL in 1953 and then, the Sportster in 1957.
U - Side valve 74 or 80 cubic inch "big twin"
V - Side valve 74 cubic inch made prior to 1936
W - Side valve 45 cubic inch made 1934 to 1952
X - Sports and special construction. Applied to 1918-1922 opposed twin Sport, 1944 military opposed twin, and 1957 to present Sportster.

The second letter of the model designator sets up the front end in most cases
X - Narrow tire and sport forks
L - Wide front tire and Hydra-Glide front forks.
FX - originally meant "Factory Expirimantal" The first one was the Super Glide FX

The third letter of the model helps define the frame style:
D - "Dyna" frame and has rubber mounted motor
HT - "Highway Touring" frame ST - "Softail®" frame

The next letter or letters also help classify bike within the frame family:
A - Military (Army) version (except GA, Servicar without tow bar)
B - Battery start (early models), Belt drive (early 80's) Black paint.(1995-6 model, the Bad Boy)
C - Classic, Competition, Custom, various others meanings.
D - Dyna, the newest frame and engine mount design.
DG - Disc Glide
E - Electric start
F - Foot shift (when the standard was hand-shift) and now "Fat Boy®"
H - varied between High performance and Heavy duty.
I - Signifies Fuel Injection.
L - Big fat front tire
LR- Low Rider (though many Low Riders don't include LR in the model ID)
N - Nostalgia
P - Police version
R - Rubber mounted engine (some models) racing version (other models)
ST- Soft Tail, Softail®l
S - Springer
S - (without following T) Sports version
T - Touring
WG - Wide Glide
X - Sportster or sportster-type front end and Skinny front tire.

Softail Standard
FXSTS Bad Boy
Heritage Softail Classic
Springer Custom
FX Shovelhead
Harley Davidson FXR
Electra Glide Classic
FXSTD Deuce
FXSTB Night Train
Harley Davidson Fatboy
Fatboy FLSTF
95th Anniversary Harley Series
100th Anniv. Harley Series
Custom Panhead
Dyna Lowrider
Custom Fat Boy
Classic Fatboy
1200 Sportster
FLSTN Heritage Nostalgia
Sportster 883C

Heritage Springer Softail
FLSTN Nostalgia
XL1200C
Road King Custom
Custom Hardtail
Ultra Classic
Custom Softail
FXE Shovel Head
Custom Dyna Wide Glide
Custom Fatboy
Night Train Custom
FXDWG Anniversary
Anniversary FLSTF Fatboy
Electra Glide
FLH Ultra Classic
Custom Sportster
Electra Glide Classic
Electra Glide FLH
Custom Chopper
Road Glide